CHOWCHILLA — Authorities say three San Francisco Bay area residents are dead and a fourth hospitalized after a head-on crash on a Central California highway.

The California Highway Patrol says the collision took place around 8 a.m. Tuesday after a semi-truck overturned and spilled its load of cotton bales, partially blocking lanes of Highway 152 near the Madera County city of Chowchilla.

The CHP says when 38-year-old Liwei Xu of San Leandro, who was driving a Volvo pulling a container trailer, swerved to avoid the overturned semi and the cotton bales, his car collided head-on with a Honda.

The three occupants of the Honda, all from San Jose, were killed in the crash.

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